The complete question is: Which is the cheapest way to get to Vietnam in summer by flying from Europe? I'm planning a one-month trip to Vietnam for this summer, but I cannot find any reference on what airlines fly from anywhere in Europe to anywhere in Vietnam with or without stops.
In a forum (sorry I've lost the link) somebody told the cheapest is to fly to Bangkok and then fly with Air Asia to Vietnam. Is that the cheapest way? In this case, which is the cheapest route to BKK from Europe?
EDIT: As requested, my country is Spain, but my experience is that Ryanair could take you anywhere in Europe for just 30-60 €, while taking off from Madrid is about 100-300 € more expensive than the same in other european cities. The idea is stay about 4-5 weeks from the first week of july to mid september, but it is also "negotiable" (I have a very flexible work).